Click here to close now.




















Welcome!

Microsoft Cloud Authors: Eric Aarrestad, Greg O'Connor, Liz McMillan, Aleksei Gavrilenko, Elizabeth White

News Feed Item

Fujitsu Develops Cluster-Based Distributed Controller Technology to Implement Failure-Tolerant Wide-Area Software-Defined Networking

Enables uninterrupted operations of large-scale networks

Kawasaki, Japan, June 5, 2014 - (JCN Newswire) - Fujitsu Laboratories Ltd. today announced that it has developed technology for cluster-based distributed controllers in large-scale networks that implements a wide-area software-defined networking (SDN) and that can automatically handle controller failures and load fluctuations.

A cluster-based distributed controller runs on multiple physical controllers as a single logical controller to control multiple network switches. Compared to conventional centralized controllers, cluster-based distributed controllers offer better scalability and improved failure tolerance. Until now, however, the problem was that they had difficulty handling sudden load fluctuations and coordinated control when there was a controller failure.

Now, Fujitsu Laboratories has developed a distributed controller module for the coordinated control of multiple controllers, a load-balancing technology that transfers a switch being managed by one controller to another in a matter of seconds when a controller is under increasing load or has a failure, and an uninterrupted recovery technology. These technologies enable SDNs to work reliably when traffic rises beyond initially expected levels, or when multiple controllers have failures.

By deploying an SDN with these technologies to a wide-area network, infrastructure can recover quickly from disasters or other network failures while maintaining steady network operations.

These technologies are being presented at Interop Tokyo 2014, opening June 11 at Makuhari Messe in Chiba, Japan.

Background

Existing SDNs such as OpenFlow(1) are designed for centralized control, which means that operating wide-area networks, configured with switches transferring large volumes of communication packets, as SDNs results in highly concentrated loads in the controller when the number of users increases. This will be an obstacle to the smooth provision of service, and if the controller itself fails, the switch that it had been managing can no longer be controlled.
Fujitsu Laboratories solved these problems by treating multiple physical controllers as a single logical controller that can handle centralized control of thousands of switches. This is accomplished through a proprietary cluster-based distributed controller technology.

This technology consists of a module for control applications that is an add-on to existing controller applications, and a distributed controller module that connects multiple distributed controllers as components of an OpenFlow controller so that, depending on loads, application and controller components can be added along with server resources.

Issues

Cluster-based distributed controllers are different from centralized controllers in that multiple distributed controller modules need to be run in a coordinated way so that they do not compete with each other. Another challenge is ensuring continuity of control. Processes need to keep running even if a module fails, but difficulties are encountered with automatic switchovers when some controller components are heavily loaded or fail, and processing by the switches managing the controllers slows down or control becomes unsustainable.

About the Technology

Fujitsu Laboratories has developed a load-balancing technology that automatically redistributes control loads in a cluster-based distributed controller, and a recovery technology that automatically reassigns controllers without interruption when one fails.

Load-Balancing Technology Fujitsu Laboratories has developed a load-checking function as a new addition to the distributed-controller coordination module. This collects load information from each controller component (such as CPU utilization rate and number of switches) (step 1), and the coordination system periodically checks load information using one distributed-controller coordination module chosen as the "leader" based on module control number or other criterion (step 2) to detect load imbalances. If load rebalancing is judged to be needed according to the load-balancing logic, which switches to be reassigned are decided based on switch-reassignment logic, to balance the load according to a policy for CPU utilization rates and number of switches (step 3). As a result, the correspondence between the changed switches and the controllers is registered in the coordination system (step 4), and the load is balanced by reassigning the switches in accordance with the updated information from the distributed-controller (step 5).

Uninterrupted Recovery Technology Fujitsu Laboratories has developed a new failure-checking function for the distributed-controller coordination module. The distributed-controller coordination module chosen as leader detects a failure in a controller component (steps 1, 2) and determines a new controller component to manage the switches connected to the failed controller (step 3). This changes the controller/switch correspondence information to redistribute loads automatically based on controller-component load information (CPU utilization rates and number of switches) (step 4). The distributed-controller coordination modules that have not failed link to the information update and activate it to reassign the controllers managing switches (step 5) so that operations continue without any interruption in service. Because the controllers that are the reassignment destinations are decided using load-balancing technology, no controller should experience a sudden load spike that would cause it to shut down.

Furthermore, even if the leader module itself suffers from a failure, the coordination system will detect a session interruption and select a new leader, and that leader module will determine controllers to manage switches again.

Results

Using the cluster-based distributed controller makes it possible to handle sudden load fluctuations and to maintain continuity of network services even when controllers fail, enabling stable, highly reliable operations of wide-area networks.

For example, in the case of conventional controllers, when they are duplicated in the hot standby mode, i.e. active and on standby, for a ten-domain network, the total required number of the controllers is 20, or specifically two per domain. By contrast, using cluster-based distributed controllers, just one standby controller is added to the regularly running ten controllers, so that only 11 controllers are needed, enabling a reduction in the number of controllers by nearly half.

Future Plans

This technology could be used in the networks of telecommunications carriers and other network infrastructure to achieve highly reliable, stable operations with lower deployment costs and lower operating costs.

Fujitsu Laboratories is continuing with research and development on control technology for cluster-based distributed controllers with the goal of a practical implementation in fiscal 2015.

Note:

(1) OpenFlow

A centralized control technology that isolates the control unit for routers and switches from data transfer.

About Fujitsu Limited

Fujitsu is the leading Japanese information and communication technology (ICT) company offering a full range of technology products, solutions and services. Approximately 170,000 Fujitsu people support customers in more than 100 countries. We use our experience and the power of ICT to shape the future of society with our customers. Fujitsu Limited (TSE: 6702) reported consolidated revenues of 4.4 trillion yen (US$47 billion) for the fiscal year ended March 31, 2013 For more information, please see www.fujitsu.com.



Source: Fujitsu Limited

Contact:
Fujitsu Limited
Public and Investor Relations
www.fujitsu.com/global/news/contacts/
+81-3-3215-5259


Copyright 2014 JCN Newswire. All rights reserved. www.japancorp.net

More Stories By JCN Newswire

Copyright 2008 JCN Newswire. All rights reserved. Republication or redistribution of JCN Newswire content is expressly prohibited without the prior written consent of JCN Newswire. JCN Newswire shall not be liable for any errors or delays in the content, or for any actions taken in reliance thereon.

@ThingsExpo Stories
SYS-CON Events announced today that HPM Networks will exhibit at the 17th International Cloud Expo®, which will take place on November 3–5, 2015, at the Santa Clara Convention Center in Santa Clara, CA. For 20 years, HPM Networks has been integrating technology solutions that solve complex business challenges. HPM Networks has designed solutions for both SMB and enterprise customers throughout the San Francisco Bay Area.
For IoT to grow as quickly as analyst firms’ project, a lot is going to fall on developers to quickly bring applications to market. But the lack of a standard development platform threatens to slow growth and make application development more time consuming and costly, much like we’ve seen in the mobile space. In his session at @ThingsExpo, Mike Weiner, Product Manager of the Omega DevCloud with KORE Telematics Inc., discussed the evolving requirements for developers as IoT matures and conducted a live demonstration of how quickly application development can happen when the need to comply wit...
The Internet of Everything (IoE) brings together people, process, data and things to make networked connections more relevant and valuable than ever before – transforming information into knowledge and knowledge into wisdom. IoE creates new capabilities, richer experiences, and unprecedented opportunities to improve business and government operations, decision making and mission support capabilities.
Explosive growth in connected devices. Enormous amounts of data for collection and analysis. Critical use of data for split-second decision making and actionable information. All three are factors in making the Internet of Things a reality. Yet, any one factor would have an IT organization pondering its infrastructure strategy. How should your organization enhance its IT framework to enable an Internet of Things implementation? In his session at @ThingsExpo, James Kirkland, Red Hat's Chief Architect for the Internet of Things and Intelligent Systems, described how to revolutionize your archit...
MuleSoft has announced the findings of its 2015 Connectivity Benchmark Report on the adoption and business impact of APIs. The findings suggest traditional businesses are quickly evolving into "composable enterprises" built out of hundreds of connected software services, applications and devices. Most are embracing the Internet of Things (IoT) and microservices technologies like Docker. A majority are integrating wearables, like smart watches, and more than half plan to generate revenue with APIs within the next year.
Growth hacking is common for startups to make unheard-of progress in building their business. Career Hacks can help Geek Girls and those who support them (yes, that's you too, Dad!) to excel in this typically male-dominated world. Get ready to learn the facts: Is there a bias against women in the tech / developer communities? Why are women 50% of the workforce, but hold only 24% of the STEM or IT positions? Some beginnings of what to do about it! In her Opening Keynote at 16th Cloud Expo, Sandy Carter, IBM General Manager Cloud Ecosystem and Developers, and a Social Business Evangelist, d...
In his keynote at 16th Cloud Expo, Rodney Rogers, CEO of Virtustream, discussed the evolution of the company from inception to its recent acquisition by EMC – including personal insights, lessons learned (and some WTF moments) along the way. Learn how Virtustream’s unique approach of combining the economics and elasticity of the consumer cloud model with proper performance, application automation and security into a platform became a breakout success with enterprise customers and a natural fit for the EMC Federation.
The Internet of Things is not only adding billions of sensors and billions of terabytes to the Internet. It is also forcing a fundamental change in the way we envision Information Technology. For the first time, more data is being created by devices at the edge of the Internet rather than from centralized systems. What does this mean for today's IT professional? In this Power Panel at @ThingsExpo, moderated by Conference Chair Roger Strukhoff, panelists addressed this very serious issue of profound change in the industry.
Discussions about cloud computing are evolving into discussions about enterprise IT in general. As enterprises increasingly migrate toward their own unique clouds, new issues such as the use of containers and microservices emerge to keep things interesting. In this Power Panel at 16th Cloud Expo, moderated by Conference Chair Roger Strukhoff, panelists addressed the state of cloud computing today, and what enterprise IT professionals need to know about how the latest topics and trends affect their organization.
It is one thing to build single industrial IoT applications, but what will it take to build the Smart Cities and truly society-changing applications of the future? The technology won’t be the problem, it will be the number of parties that need to work together and be aligned in their motivation to succeed. In his session at @ThingsExpo, Jason Mondanaro, Director, Product Management at Metanga, discussed how you can plan to cooperate, partner, and form lasting all-star teams to change the world and it starts with business models and monetization strategies.
Converging digital disruptions is creating a major sea change - Cisco calls this the Internet of Everything (IoE). IoE is the network connection of People, Process, Data and Things, fueled by Cloud, Mobile, Social, Analytics and Security, and it represents a $19Trillion value-at-stake over the next 10 years. In her keynote at @ThingsExpo, Manjula Talreja, VP of Cisco Consulting Services, discussed IoE and the enormous opportunities it provides to public and private firms alike. She will share what businesses must do to thrive in the IoE economy, citing examples from several industry sectors.
There will be 150 billion connected devices by 2020. New digital businesses have already disrupted value chains across every industry. APIs are at the center of the digital business. You need to understand what assets you have that can be exposed digitally, what their digital value chain is, and how to create an effective business model around that value chain to compete in this economy. No enterprise can be complacent and not engage in the digital economy. Learn how to be the disruptor and not the disruptee.
Akana has released Envision, an enhanced API analytics platform that helps enterprises mine critical insights across their digital eco-systems, understand their customers and partners and offer value-added personalized services. “In today’s digital economy, data-driven insights are proving to be a key differentiator for businesses. Understanding the data that is being tunneled through their APIs and how it can be used to optimize their business and operations is of paramount importance,” said Alistair Farquharson, CTO of Akana.
Business as usual for IT is evolving into a "Make or Buy" decision on a service-by-service conversation with input from the LOBs. How does your organization move forward with cloud? In his general session at 16th Cloud Expo, Paul Maravei, Regional Sales Manager, Hybrid Cloud and Managed Services at Cisco, discusses how Cisco and its partners offer a market-leading portfolio and ecosystem of cloud infrastructure and application services that allow you to uniquely and securely combine cloud business applications and services across multiple cloud delivery models.
The enterprise market will drive IoT device adoption over the next five years. In his session at @ThingsExpo, John Greenough, an analyst at BI Intelligence, division of Business Insider, analyzed how companies will adopt IoT products and the associated cost of adopting those products. John Greenough is the lead analyst covering the Internet of Things for BI Intelligence- Business Insider’s paid research service. Numerous IoT companies have cited his analysis of the IoT. Prior to joining BI Intelligence, he worked analyzing bank technology for Corporate Insight and The Clearing House Payment...
"Optimal Design is a technology integration and product development firm that specializes in connecting devices to the cloud," stated Joe Wascow, Co-Founder & CMO of Optimal Design, in this SYS-CON.tv interview at @ThingsExpo, held June 9-11, 2015, at the Javits Center in New York City.
SYS-CON Events announced today that CommVault has been named “Bronze Sponsor” of SYS-CON's 17th International Cloud Expo®, which will take place on November 3–5, 2015, at the Santa Clara Convention Center in Santa Clara, CA. A singular vision – a belief in a better way to address current and future data management needs – guides CommVault in the development of Singular Information Management® solutions for high-performance data protection, universal availability and simplified management of data on complex storage networks. CommVault's exclusive single-platform architecture gives companies unp...
Electric Cloud and Arynga have announced a product integration partnership that will bring Continuous Delivery solutions to the automotive Internet-of-Things (IoT) market. The joint solution will help automotive manufacturers, OEMs and system integrators adopt DevOps automation and Continuous Delivery practices that reduce software build and release cycle times within the complex and specific parameters of embedded and IoT software systems.
"ciqada is a combined platform of hardware modules and server products that lets people take their existing devices or new devices and lets them be accessible over the Internet for their users," noted Geoff Engelstein of ciqada, a division of Mars International, in this SYS-CON.tv interview at @ThingsExpo, held June 9-11, 2015, at the Javits Center in New York City.
Internet of Things is moving from being a hype to a reality. Experts estimate that internet connected cars will grow to 152 million, while over 100 million internet connected wireless light bulbs and lamps will be operational by 2020. These and many other intriguing statistics highlight the importance of Internet powered devices and how market penetration is going to multiply many times over in the next few years.